Roughly speaking, Finsler metrics on a manifold are regular, but not necessarily reversible,
distance functions. In 1854, B. Riemann attempted to study a special class of Finsler metrics-…

Any stretching of Ringel's non-Pappus pseudoline arrangement when projected into the
Euclidean plane, implicitly contains a particular arrangement of nine triangles. This arrangement …

I show that the zeros of the chromatic polynomials . An immediate corollary is that the chromatic
roots of not-necessarily-planar graphs are dense in the whole complex plane. The main …

The purpose of this paper is to present significant results on welfare theoretic approaches to
the measurement of poverty. Alternative forms of indices are analyzed. The problem of …

L’objectif de ce manuscript est de présenter une synthèse de mes travaux de recherche
dont la liste se trouve ci-dessous. Même si je me suis efforcé de situer ces travaux dans leur …

During the past decade there has been a growing opinion of including more than an income
perspective in the examination of inequality. As a result a broad theoretical literature on the …

En este trabajo se considera una población de contribuyentes heterogénea respecto de las
características que, además de la renta, tienen incidencia fiscal. Realizada una partición …

A central problem in approximation theory is the concise representation of functions. Given a
function or signal described as a vector in high-dimensional space, the goal is to represent …

This thesis addresses the question of how a theorem characterizing a combinatorial
structure can be used to assist with generating random instances of the structure. Efficient …

Systems biology is an emergent field focused on developing a system-level understanding
of biological systems. In the last decade advances in genomics, transcriptomics and …